Date: Thu, 1 Jul 2004 00:51:32 +0000 (UTC) From: Nate Lawson <njl@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/acpica acpi_ec.c Message-ID: <200407010051.i610pWTU058610@repoman.freebsd.org>
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njl 2004-07-01 00:51:32 UTC
FreeBSD src repository
Modified files:
sys/dev/acpica acpi_ec.c
Log:
Rework the code that waits for a response from the EC. Use an sx lock
instead of a mutex so we do not unblock it in msleep(). If we do this,
another event could occur, resetting the status register since reads
reset it. While I'm here, remove the backoff approach. Instead, sleep
in 10 ms chunks for up to the configured timeout using either DELAY (if
we aren't booted yet) or tsleep.
Help from: dillon
Tested by: Andrew Thompson andy AT fud.org.nz
Revision Changes Path
1.56 +35 -48 src/sys/dev/acpica/acpi_ec.c
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